Apparatus for carrying out a non-destructive inspection on wooden boards or similar objects
This invention relates to an apparatus ( 1 ) for carrying out a non-destructive inspection on a wooden board ( 9 ) or a similar object. The apparatus ( 1 ) comprises a movement system ( 3 ) comprising at least two chains or belts ( 32 ) that are at a distance from one another and substantially parallel to each other. The chains or belts ( 32 ) are slidable parallel to a movement path ( 30 ) and are and intended to support the wooden board ( 9 ). The apparatus ( 1 ) also comprises a non-destructive inspection station ( 2 ) that is positioned on the movement path ( 30 ), for carrying out a non-destructive inspection on the wooden board ( 9 ) that is supported by the chains or belts ( 32 ). The non-destructive inspection station ( 2 ) comprises at least one operating component ( 22 ) that is positioned on the same side as the chains or belts ( 32 ) and emits or receives a signal or an image, with an emission or reception field ( 220 ) that faces towards a region between two chains or belts ( 32 ). Each chain or belt ( 32 ) comprises an elongate flexible body ( 320 ) and at least one rest element ( 36 ) that is positioned on the elongate flexible body ( 320 ). The at least one rest element ( 36 ) projects upwards from the elongate flexible body ( 320 ) and has a top face ( 361 ) with a width (L 36 ) that is less than the width (L 32 ) of the elongate flexible body ( 320 ). The top faces ( 361 ) are intended to provide a surface on which the wooden board ( 9 ) can rest, so that the wooden board is kept at a distance from the elongate flexible body ( 320 ) of each chain or belt ( 32 ).
1. An apparatus ( 1 ) for carrying out a non-destructive inspection on a wooden board ( 9 ) or a similar object, comprising:
a movement system ( 3 ) for moving a wooden board ( 9 ) or a similar object along a movement path ( 30 ), the movement system ( 3 ) comprising at least two chains or belts ( 32 ) that are at a distance from one another and substantially parallel to each other, the at least two chains or belts ( 32 ) being slidable parallel to the movement path ( 30 ) and intended to support said wooden board ( 9 ) or similar object;
a non-destructive inspection station ( 2 ) that is positioned at an intermediate position of the movement path ( 30 ), the non-destructive inspection station ( 2 ) being designed to carry out a non-destructive inspection on a wooden board ( 9 ) or similar object that, during operation, is supported by the at least two chains or belts ( 32 ) and passes through the non-destructive inspection station ( 2 ), the at least two chains or belts ( 32 ) being present in the non-destructive inspection station ( 2 ) so as to support the wooden board ( 9 ) or similar object while the non-destructive inspection is carried out;
wherein the non-destructive inspection station ( 2 ) comprises at least one operating component ( 22 ) that, relative to the wooden board ( 9 ) or similar object in the non-destructive inspection station ( 2 ), is positioned on the same side as the at least two chains or belts ( 32 ), wherein the operating component ( 22 ) ether (i) emits a signal and has an emission field ( 220 ) or (ii) receives an image and has a reception field ( 220 ), wherein the emission or reception field ( 220 ) faces towards a region delimited by a first chain or belt ( 32 ) and by a second chain or belt ( 32 ), the emission or reception field ( 220 ) having a respective angular amplitude (a 22 ) and a vertex ( 221 ), the emission or reception field ( 220 ) converging towards the operating component ( 22 ) so that, relative to the wooden board ( 9 ) or similar object in the non-destructive inspection station ( 2 ), the vertex ( 221 ) of the emission or reception field ( 220 ) is on the same side as the at least one operating component ( 22 ),
wherein each chain or belt ( 32 ) comprises an elongate flexible body ( 320 ) and at least one rest element ( 36 ) that is positioned on the elongate flexible body ( 320 ) and is designed to receive the wooden board ( 9 ) or similar object in such a way that the latter rests on it,
the at least one rest element ( 36 ) projecting upwards from the elongate flexible body ( 320 ) and having a top face ( 361 ) on which the wooden board ( 9 ) or similar object can rest, the top face ( 361 ) having a width (L 36 ) that is less than the width (L 32 ) of the elongate flexible body ( 320 ), those widths being measured along a line transversal or orthogonal to the movement path ( 30 ) to which the at least two chains or belts ( 32 ) are slidable parallel,
whereby, during carrying out of the non-destructive inspection, in the non-destructive inspection station ( 2 ) the wooden board ( 9 ) or similar object rests on the top face ( 361 ) of the at least one rest element ( 36 ) of the first chain or belt ( 32 ) and on the top face ( 361 ) of the at least one rest element ( 36 ) of the second chain or belt ( 32 ), said rest elements ( 36 ) holding the wooden board ( 9 ) or similar object in a position at a distance from the elongate flexible body ( 320 ) of each chain or belt ( 32 ), and, thanks to the width (L 36 ) of the top face ( 361 ) being less than the width (L 32 ) of the elongate flexible body ( 320 ), the wooden board ( 9 ) or similar object comprises, at each chain or belt ( 32 ), at least one surface zone ( 91 ) that is at a side of the at least one rest element ( 36 ) and faces towards the respective elongate flexible body ( 320 ),
the operating component ( 22 ) being positioned in such a way that said at least one surface zone ( 91 ) is within the emission or reception field ( 220 ) of the operating component ( 22 ) and is not obscured, relative to the operating component ( 22 ), by the chain or belt ( 32 ) comprising the respective elongate flexible body ( 320 ), whereby, during carrying out of the non-destructive inspection, said at least one surface zone ( 91 ) is visible to or detectable by the operating component ( 22 ),
wherein the at least one rest element ( 36 ) comprises at least one longitudinal lateral face ( 363 ) that is inclined,
wherein in the non-destructive inspection station ( 2 ) the longitudinal lateral face ( 363 ) of the at least one rest element ( 36 ) of the first chain or belt ( 32 ) and the longitudinal lateral face ( 363 ) of an opposite rest element ( 36 ) of the second chain or belt ( 32 ) are inclined relative to each other in such a way that they converge with an angle (a 36 ) that has an amplitude which is less than the angular amplitude (a 22 ) of the emission or reception field ( 220 ) of the operating component ( 22 ), the vertex ( 221 ) of the emission or reception field ( 220 ) being located in a convex angular sector defined by the convergence of the inclined longitudinal lateral faces ( 363 ).
2. The apparatus ( 1 ) according to claim 1 , wherein in the non-destructive inspection station ( 2 ) the distance (D 36 ) between the top face ( 361 ) of the at least one rest element ( 36 ) of the first chain or belt ( 32 ) and the top face ( 361 ) of an opposite rest element ( 36 ) of the second chain or belt ( 32 ) is greater than the distance (D 32 ) between the elongate flexible bodies ( 320 ) of the first chain or belt ( 32 ) and of the second chain or belt ( 32 ).
3. The apparatus ( 1 ) according to claim 1 , wherein the at least one rest element ( 36 ) is substantially wedge-shaped, in such a way that the top face ( 361 ) has a width that is less than a bottom face ( 362 ) opposite to the top face ( 361 ).
4. The apparatus ( 1 ) according to claim 1 , wherein the at least one rest element ( 36 ) has a cross-section that substantially has the shape of a triangle or a trapezium, in particular having the shape of an isosceles triangle or an isosceles trapezium.
5. The apparatus ( 1 ) according to claim 1 , wherein the at least one rest element ( 36 ) comprises a base piece ( 366 ) and a top piece ( 368 ) that comprises said top face ( 361 ), the top piece ( 368 ) being removably mounted on the base piece ( 366 ), in such a way that it can be substituted.
6. The apparatus ( 1 ) according to claim 1 , wherein the at least one rest element of each chain or belt ( 32 ) extends along the entire length of the respective elongate flexible body ( 320 ).
7. The apparatus ( 1 ) according to claim 1 , wherein each chain or belt ( 32 ) comprises a plurality of rest elements ( 36 ) that are positioned one after another along the respective elongate flexible body ( 320 ).
8. The apparatus ( 1 ) according to claim 7 , wherein the elongate flexible body ( 320 ) of each chain or belt ( 32 ) is formed by a plurality of links ( 325 ) and each rest element ( 36 ) is fixed to a respective link ( 325 ).
9. The apparatus ( 1 ) according to claim 1 , wherein the elongate flexible body ( 320 ) of each chain or belt ( 32 ) is ribbon-like and the respective at least one rest element ( 36 ) is fixed on the ribbon-like elongate flexible body ( 320 ), said at least two chains or belts ( 32 ) being conveyor belts.
10. The apparatus ( 1 ) according to claim 1 , comprising at least three of said chains or belts ( 32 ) and at least two of said operating components ( 22 ), wherein each operating component ( 22 ) faces towards a respective region that is delimited by a respective pair of chains or belts ( 32 ).
11. The apparatus ( 1 ) according to claim 1 , intended to carry out a non-destructive inspection on wooden boards ( 9 ) that are positioned transversally or orthogonally relative to the movement path ( 30 ), each wooden board ( 9 ) having a main direction of extension to which the largest dimension of the wooden board ( 9 ) corresponds, the main direction of extension being transversal or orthogonal to the movement path ( 30 ).
12. The apparatus ( 1 ) according to claim 1 , wherein said non-destructive inspection is an X-ray or a tomographic scan, said non-destructive inspection station ( 2 ) being an X-ray device or a tomography machine and said operating component ( 22 ) being an X-ray emitter.
13. The apparatus ( 1 ) according to claim 1 , wherein said non-destructive inspection is a visual analysis, said non-destructive inspection station ( 2 ) being a vision system and said operating component ( 22 ) being a video camera receiving an image of a lower face of the wooden board ( 9 ).
14. The apparatus ( 1 ) according to claim 2 , wherein the at least one rest element ( 36 ) is substantially wedge-shaped, in such a way that the top face ( 361 ) has a width that is less than a bottom face ( 362 ) opposite to the top face ( 361 ) and that at least one longitudinal lateral face ( 363 ) is inclined.
15. The apparatus ( 1 ) according to claim 2 , wherein the at least one rest element ( 36 ) has a cross-section that substantially has the shape of a triangle or a trapezium, in particular having the shape of an isosceles triangle or an isosceles trapezium.
16. The apparatus ( 1 ) according to claim 3 , wherein the at least one rest element ( 36 ) has a cross-section that substantially has the shape of a triangle or a trapezium, in particular having the shape of an isosceles triangle or an isosceles trapezium.
17. The apparatus ( 1 ) according to claim 2 , wherein the at least one rest element ( 36 ) comprises a base piece ( 366 ) and a top piece ( 368 ) that comprises said top face ( 361 ), the top piece ( 368 ) being removably mounted on the base piece ( 366 ), in such a way that it can be substituted.
18. The apparatus ( 1 ) according to claim 4 , wherein the at least one rest element ( 36 ) comprises a base piece ( 366 ) and a top piece ( 368 ) that comprises said top face ( 361 ), the top piece ( 368 ) being removably mounted on the base piece ( 366 ), in such a way that it can be substituted.
19. The apparatus ( 1 ) according to claim 2 , wherein the at least one rest element of each chain or belt ( 32 ) extends along the entire length of the respective elongate flexible body ( 320 ).
20. The apparatus ( 1 ) according to claim 4 , wherein the at least one rest element of each chain or belt ( 32 ) extends along the entire length of the respective elongate flexible body ( 320 ).
21. The apparatus ( 1 ) according to claim 5 , wherein the at least one rest element of each chain or belt ( 32 ) extends along the entire length of the respective elongate flexible body ( 320 ).
22. The apparatus ( 1 ) according to claim 2 , wherein each chain or belt ( 32 ) comprises a plurality of rest elements ( 36 ) that are positioned one after another along the respective elongate flexible body ( 320 ).
23. The apparatus ( 1 ) according to claim 4 , wherein each chain or belt ( 32 ) comprises a plurality of rest elements ( 36 ) that are positioned one after another along the respective elongate flexible body ( 320 ).
24. The apparatus ( 1 ) according to claim 2 , wherein the elongate flexible body ( 320 ) of each chain or belt ( 32 ) is ribbon-like and the respective at least one rest element ( 36 ) is fixed on the ribbon-like elongate flexible body ( 320 ), said at least two chains or belts ( 32 ) being conveyor belts.
25. The apparatus ( 1 ) according to claim 4 , wherein the elongate flexible body ( 320 ) of each chain or belt ( 32 ) is ribbon-like and the respective at least one rest element ( 36 ) is fixed on the ribbon-like elongate flexible body ( 320 ), said at least two chains or belts ( 32 ) being conveyor belts.
26. The apparatus ( 1 ) according to claim 2 , wherein said non-destructive inspection is an X-ray or a tomographic scan, said non-destructive inspection station ( 2 ) being an X-ray device or a tomography machine and said operating component ( 22 ) being an X-ray emitter.
27. The apparatus ( 1 ) according to claim 4 , wherein said non-destructive inspection is an X-ray or a tomographic scan, said non-destructive inspection station ( 2 ) being an X-ray device or a tomography machine and said operating component ( 22 ) being an X-ray emitter.
28. The apparatus ( 1 ) according to claim 5 , wherein said non-destructive inspection is an X-ray or a tomographic scan, said non-destructive inspection station ( 2 ) being an X-ray device or a tomography machine and said operating component ( 22 ) being an X-ray emitter.
29. The apparatus ( 1 ) according to claim 2 , wherein said non-destructive inspection is a visual analysis, said non-destructive inspection station ( 2 ) being a vision system and said operating component ( 22 ) being a video camera receiving an image of a lower face of the wooden board ( 9 ).
30. The apparatus ( 1 ) according to claim 4 , wherein said non-destructive inspection is a visual analysis, said non-destructive inspection station ( 2 ) being a vision system and said operating component ( 22 ) being a video camera receiving an image of a lower face of the wooden board ( 9 ).
31. The apparatus ( 1 ) according to claim 5 , wherein said non-destructive inspection is a visual analysis, said non-destructive inspection station ( 2 ) being a vision system and said operating component ( 22 ) being a video camera receiving an image of a lower face of the wooden board ( 9 ).
32. The apparatus ( 1 ) according to claim 9 , wherein said non-destructive inspection is a visual analysis, said non-destructive inspection station ( 2 ) being a vision system and said operating component ( 22 ) being a video camera receiving an image of a lower face of the wooden board ( 9 ).
33. The apparatus ( 1 ) according to claim 11 , wherein said non-destructive inspection is a visual analysis, said non-destructive inspection station ( 2 ) being a vision system and said operating component ( 22 ) being a video camera receiving an image of a lower face of the wooden board ( 9 ).